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Sony fleshed out its revamped smartphone lineup on Monday, announcing two new handsets: the Xperia SP and the Xperia L. The pair sits clearly downmarket of Sony¿s flagship Xperia Z, which was launched back at the Consumer Electronics Show in January, and has yet to go on sale in the U.S.

Your day job, not to mention fitness level, will probably keep you from ever ascending the mightiest peaks on Earth. Don¿t worry. Google¿s done the hard work for you and released the stunning panoramic images needed to make you feel like you¿re on top of the world.

A few months ago, I had the opportunity to play with a Toshiba Satellite U925t, one of the new breed of Windows 8 convertible Ultrabooks. This time around, I was able to spend some quality time with a new Google Chromebook, a Samsung 303C12. This was my first time spending more than a few minutes dabbling at display with a Chromebook ( I've had it for a few weeks now). Given the growing popularity of these devices as a low-cost replacement for a tablet or netbook, I thought it might be worth writing about. Any resemblance to Apple's MacBook Air is purely superficial. When it comes to performance, there's no comparison (this Chromebook has 2GB of RAM, a 16 GB SSD and is powered by a Samsung Exynos 5 dual-core processor designed for mobile use). But the Chromebook ¿ or at least this Chromebook (Google's latest may be a different story) isn't intended to compete against the Apple's ultraportable.

It¿s in the tenuous balance of Facebook vs. Facebook -- not between Google and Facebook or LinkedIn and Facebook or Twitter and Facebook -- that the success of Graph Search and its impact on the company will be determined.

One of the great things about cloud computing is that you don¿t have to worry about bumpy old software updates, except when they take down the entire cloud. That¿s what happened on Tuesday when Microsoft¿s Hotmail, Outlook.com and Skydrive sites went down for some.

Samsung's Galaxy S4 finally made its debut Thursday night, and not a single thing about the phone was surprising. Every feature and every spec shown off was leaked in a rumor leading up to the S4's unveiling. But that doesn't make the S4 any less impressive of a device. Here are five things you need to know about the S4 before buying one for yourself.

Twitter finally has a new CTO. The role had been empty since May 2011, when former CTO Greg Pass left the company. Stepping up is the company¿s former vice president of application development, Adam Messinger. There¿s no official word from Twitter as of yet, but Messinger has updated his Twitter and LinkedIn profile with his new title.

Samsung's Galaxy S IV is being unveiled tonight in an event in New York City that's being streamed to Facebook and Times Square, and live blogged by us, right here on Gadget Lab. For the Korean smartphone maker, the S IV debut probably couldn't happen at a better time.

Stop watching zombies on your TV and start fighting them in your neighborhood. The team behind the essential survival tool Map of the Dead have created Map of the Dead: Zombie Apocalypse Survival, a location-based app that has you battling zombies around town and stealing supplies from neighbors.

We don't know much about what goes on in Apple's data centers. But we do know is that Apple is spending mountains of money on a new breed of hardware device from a company called Fusion-io. As a public company, Fusion-io is required to disclose information about customers who purchase unusually large amounts of gear, and with its latest annual report, the Salt Lake City outfit reveals that in 2012, at least 25 percent of its revenue -- $89.8 million -- came from Apple. That's just one figure, from just one company. But it serves as a sign post, showing you where the modern data center is headed.